Golf-ball.



PATENT-ED JULY 21 1903.

C. T. KINGZETT. GOLF BALL. APPLICATION FILED MAY 22. 1903.

H0 MODEL.

then winding and squeezing around this en-' U ITED STATES Patented July 21, 1903;

CHARLES THOMAS KINGZETT, OF CHISLEHURST, ENGLAND.

GOLF-BALL.

SPECIFICATION forming part of Letters Patent No. 734,463, dated July 21, 1903.

- Original application filed September 2, 1902, Serial No. 121,811. Divided and applicationfiled Pebrua.ry 4, 1903. Serial No. 141,875. Again divided and this application filed May 22, 1903. Serial No. 158,358. (No model.)

To all whom it may concern.-

. Be it known that I, CHARLES THOMASKING- ZETT,chemical manufacturer, a subject of the King of Great Britain, residing at Elinstea-d Knoll, Chislehurst, in the county of Kent, England, have invented a certain new and useful Improvement in the Manufacture of Golf-Balls, of which the followingis a specifi'cation.

According to myinvention I construct golfballs or portions of golf-balls of several or many alternating layers of gutta-percha and india-rubber from strips or sheets of both of these materials or of other'similar slightly and highly elastic substances. The halls are formed from strips out from sheets of these materials. The strips of both materials are first softened by heat and then when in this softened state wound around a central nucleus to form them into alternating layers around it. The alternating layers may either be formed by first winding around the nucleus and squeezing together a strip of the one material, so as toform around the nucleus a spherical envelop of this material,

velop a strip of the other ,material, and so on, first using a strip of theone material and then of the other until the desired thickness has been attained, or strips of the two mate-" the whole molded to spherical form.

Figure 1 represents a sheet of gutta-percha-say about one-sixteenth of an inch thick; Fig. 2, a similar shorter and narrower sheet of india-rubber. Fig. 3 shows an india-rubber ball. or other nucleus surrounded by a spiral roll of gutta-percha and india-rubber in alternating layers, the roll being sho-wuin longitudinal section. Fig. 4 shows a section of same after the ends of the roll have been roughly closed in by hand and the whole brought to an approximately spherical form. Fig. 5 shows an elevation of the same after it has been compressed in a mold and brought to spherical form. Fig. 6 shows the same -dia-rubber a and placeit onto a sheet of guttapercha b of greater width and length and roll them up together when more or less heated around the core, so as to form around it a spherical or cylindrical roll, the extoriorsurface of which will be of gutta-percha, as the gutta-percha strip is of greater length than the strip of iudia-rubber.

To form a spherical roll, the side edges of the compound strip are continuously pressed inward toward and around the central nucleus while the strip is being wound around it, or if a cylindrical roll is first formed the ends or side edges of the gutta-percha strip will be protruding outward beyond the side roll approximately to a spherical forn1,as illustrated-in Fig. 4, which may then be further compressed by a suitable mold and brought to a truly spherical form, as indicated in Fig. 5. The ball thus made I then inclose in an outer casing of gutta-percha c, asindicated in Fig. 6. This outer casing may be formed of sheet gutta-percha wound around the ball or two hemispherical cups of guttapercha first molded and placed over the ball and the whole then compressed together, or, as above stated, in place of a sheet of guttapercha and a sheet of india-rubber being wound together as a compound sheet into spiral form around a central core or nucleus the numerous alternating layers of thesematerials may be successive-that is to say, around the core may be wound several layers or folds of first the one substance and then the otherso that first a spherical covering of one substance is formed around the core,

for patent, Serial No. 141,875, filed February 4, 1903, which was a division of my application Serial No.121,811, filed September 2,1902. In application Serial No. 121,811 the ball as an article of manufacture is claimed. In application Serial No. 141,875 claims are made to the process of constructing a ball similar to the claims herein made, but omitting the step of winding the roll about a central core.

What I claim is 1. The hereinbefore-desoribed process of forming balls, consisting in winding around a central core or nucleus sheet india-rubber and sheet gutta-percha in a softened state to form around it a plurality of alternate layers, first a layer of the one material and then a layer of the other, and molding the Whole into spherical form,- then surrounding the sphere so formed with guttapercha and squeezing the whole together when heated within a mold.

2. The hereinbefore-described process of forming balls, consisting in placing a strip of sheet india-rubber onto a strip of sheet guttapercha, winding up the strips into a roll around a central core or nucleus and then squeezing the roll when heated into a spherical form.

3. The hereinhefore-described process of forming balls, consisting in placing a strip of sheet india-ru-lober onto a strip of sheet guttapercha of greater width and length, winding up the strips into a roll around a central core or nucleus in such way that the outermost layer of the roll is of gutta-percha, and then squeezing the roll when heated into a spherical form.

4. The hereinloefore-described process of forming balls, consisting in placing a strip of sheet india-rubber onto a strip of sheet guttapercha, winding up the strips into a' roll around a central core or nucleus and squeezing the roll when heated into a spherical form, then surrounding the sphere so formed with gutta-percha and squeezing the whole together when heated withina mold.

5. The hereinbefore-described process of forming balls, consisting in placing a strip of sheet india-rubber onto a strip of sheet guttapercha of greater width and length, winding up the strips into a roll around a central core or nucleus in such way that the outermost layer of the roll is of gutta-percha, and then squeezing the roll when heated into a spherical form, then surrounding the sphere so formed with gutta-percha and squeezing the whole together when heated Within a mold.

CHARLES THOMAS KINGZETT.

\Vitnesses:

WILLIAM HOLMES, CHARLES BEoKENsALL. 

